Another but unique swapping sand question

[F4TALREEFER]

Howdy

Buddy and I both like the look of Tampa Bay saltwater sand and are considering swapping out our established sand for theirs.
I'm familiar with the risks and process of replacing the sandbed when replacing with dry sand.
I'm wondering how bad is the risk of die off with the live sand? My brain tells me I should be able to essentially hot swap the sand but my experience tells me this might be a bad idea and should take the longer slow approach on top of letting the new sand cook in a brute trash can for a week or two.

Any input is much appreciated.

Thanks
Jon

 

[Mr. Mojo Rising]

Is it not an option for you to just add a layer on top? You really want to pull it all out? Just asking.....

 

[F4TALREEFER]

Is it not an option for you to just add a layer on top? You really want to pull it all out? Just asking.....

Ive thought about it for my tank. Only real concern is that TBS is chunkier shell like substrate and wonder how much will just work its way under/into the finer sand.
I run a deeper sandbed 3-6 as well so might pull half and then add TBS and personally wouldn't mind the layered/mixed in look.
My buddy on the other hand hasn't seemed to thrilled on the idea. He runs only an inch or so.